chore: suppress future warning

Author: shuoweil

bigframes/display/anywidget.py

@@ -117,6 +117,7 @@ def __init__(self, dataframe: bigframes.dataframe.DataFrame):
         if all(isinstance(col, str) for col in dataframe.columns):
             with warnings.catch_warnings():
                 warnings.simplefilter("ignore", bigframes.exceptions.JSONDtypeWarning)
+                warnings.simplefilter("ignore", category=FutureWarning)
                 self.orderable_columns = [
                     str(col_name)
                     for col_name, dtype in dataframe.dtypes.items()

bigframes/display/html.py

@@ -368,6 +368,7 @@ def repr_mimebundle(
                     warnings.simplefilter(
                         "ignore", category=bigframes.exceptions.JSONDtypeWarning
                     )
+                    warnings.simplefilter("ignore", category=FutureWarning)
                     return get_anywidget_bundle(obj, include=include, exclude=exclude)
         except ImportError:
             # Anywidget is an optional dependency, so warn rather than fail.